I'm also on the do not call list but I still get lots of charities and survey calls, which always come at dinner time and I don't even eat dinner at the same time every night.
Last week I got 3 calls from the same person within a week. I hung up everytime. Don't you think that would be enough of a clue for these people that I don't want to talk to them? Why do they call back the next day? I hate taking my time to actually talk to them and tell them don't call me again, the hangup should be sufficient.
And don't talk to me about being rude (Mom

), I think it's rude that they think just because they bought my phone number they have a right to my time.